Werewolf Therapeutics, Inc.

HOWL

Exchange: Nasdaq
Industry: Pharmaceutical Preparations
SEC CIK: 0001785530

SEC filings (opens in a new tab)

In the last 90 days, Werewolf Therapeutics, Inc. insiders filed 0 open-market purchases and 1 sale; 45 institutions reported holding it in 13F filings for Q2 2026, worth $3.91M in total; no superinvestor holds it.

Q2 2026 vs. Q1 2026

How the institutions holding Werewolf Therapeutics, Inc. changed between Q1 2026 and Q2 2026.

All holders in Q2 2026 All holders in Q1 2026

13F holders of HOWL: Q1 2026 compared with Q2 2026
Measure	Q1 2026	Q2 2026	Change
Holders	48	45	−3
Shares	14.0M	10.9M	−3.14M (−22.4%)
Value	$11.7M	$3.91M	−$7.74M (−66.4%)

New holders (9)

Institutions that held Werewolf Therapeutics, Inc. at the end of Q2 2026 but not at the end of Q1 2026.

Institutions new to HOWL in Q2 2026
Institution	Shares	Value	% of portfolio
Balyasny Asset Management LLC	1,790,089	$644.3K	0.00%
Squarepoint Ops LLC	103,242	$37.2K	0.00%
Rangeley Capital, LLC	100,000	$36.0K	0.04%
Virtu Financial LLC	45,467	$16.0K	0.00%
Gsa Capital Partners LLP	27,146	$10.0K	0.00%
Two Sigma Investments, LP	27,300	$9.82K	0.00%
StoneX Group Inc.	20,000	$9.00K	0.00%
Marest Capital, LLC	10,870	$3.91K	0.00%
Tower Research Capital LLC (TRC)	9,897	$3.56K	0.00%

Sold out (12)

Institutions that held Werewolf Therapeutics, Inc. at the end of Q1 2026 and filed for Q2 2026 without it.

Institutions that sold out of HOWL in Q2 2026
Institution	Shares, Q1 2026	Value, Q1 2026
Squadron Capital Management LLC	563,535	$469.2K
Bridgeway Capital Management, LLC	77,000	$64.1K
Raymond James Financial Inc	19,778	$16.5K
HRT Financial LP	17,861	$14.0K
Delta Investment Management, LLC	14,925	$12.4K
Citadel Advisors LLC	10,382	$8.64K
Vanguard Global Advisers, LLC	10,343	$8.62K
TFC Financial Management	4,500	$3.75K
Citigroup Inc	3,384	$2.82K
Northwestern Mutual Wealth Management Co	200	$167
FMR LLC	39	$32
SRS Capital Advisors, Inc.	12	$32